21053284

素因数分解:

$2^2\times 7^1\times {\mathrm{829}}^1\times {\mathrm{907}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 42203840

約数和(自身を除く): 21150556

約数列:

[1, 2, 4, 7, 14, 28, 829, 907, 1658, 1814, 3316, 3628, 5803, 6349, 11606, 12698, 23212, 25396, 751903, 1503806, 3007612, 5263321, 10526642, 21053284]

約数ペア:

[(1, 21053284), (2, 10526642), (4, 5263321), (7, 3007612), (14, 1503806), (28, 751903), (829, 25396), (907, 23212), (1658, 12698), (1814, 11606), (3316, 6349), (3628, 5803)]